Centrifugal liquid-separator.



trai feed pipe.

BERT R. WRIGHT, OIF PUB'HKEFAPSI, NEJV YRK,

SEPARATLR GMPANX.

conferences Specncation of Letters Patent, V Application filed Ilune 23,1908.

senin ne. ceases.

To all 'whom il may concern:

Be it known that I, BERT l., lll/emilie a citizen of the United States5 residing at Poughkeepsie, county of utchess7 and State of New Yorli7 lieve invented a new and use ful Improvement in Centrifugal Liquid- Sepa-rators, of which the following is a full, clear, and exact description, reference being had to .the accompanying drawings, which form a part of this specification. Y

My invention relates to certain improvements in delivering the full milk from the central feed pipe to insure the maximum qnentity of delivery with a given sized cen- Thc central feed pipe for practical purposes is required to he of smell size, in order to occupy a small space in the howl and in order to enable the delivery of the cream to be Well in toward the center of the bowl. Moreover, in ordinary construction the interior of the feed pipe is usually made roilncl and smooth or nearly so for convenience of manufacture and cleaning. In these circumstances the inillr fed into the central feed pipe for distribution 'intoitlle se arating space of the bowl usually parfaites in lont small degree of the revolving speed of the bowl, so that the amount fedr through the slots or other openings of 'the feed pipe is chicily due to the head and pressure ofthe liquid from the supply receptacle and is considerably less than the howl is capablelof separating, and if it is attempted to increase the supply the incoming inilk will frequently flood the central feed pipe, flowing over the top of said pipe.

In the ordinary construction non7 in use where slots or other openings from the feed pipe are used the Wells of the slots or open,l ings are substantially radial. l believe Let-l ters Patent designed to cover other purposes have' heen issued Which have incidentally7 shown slots or openings leaving the feed pipe ohliquely or in a curved direction, but not tangential. My experiments have included tests of such oblique and'curved openings (not tangential) With no advantage, end in some cases decided disadvantage, as coinpared with radial slot orlopcnings. Especially have l found this 'to be true Where the slots or openings Were forwardly instead of rearwardly inclined with respect to the rcvolving direction of the howl, E

l have discovered, after considerable Working, that a much greater relative feeding capacity is accomplished through the central feed pipe by having the forward Wall the slot or other foi-in of opening in the feed pipc,with reference to the direction in which the howl is revolving, tangential with 'the inner Wall or surface of the feed pipe at tlic point of leaving the pipe7 in. which nienner, es the pipe revolves around the inilli contained within it, there is a` freer ont-flow of the inillr throughy the slot or opening, end the inillr Within the pipe is saine inne caused to more largely partake of the revolving speed of the pipe and its discharge therefrom into the separating space of 'the howl is thereby still further facilitated. llhc pre fcrred fori'n of construction shown le qnires that the direction of the discharge as the milk leaves the feed pipe be rearwardly with respect to the direction in which the howl is revolving. The terni tangential, as used, is intended to mean that the forward Well, if prolonged7 will not pass through the Wall of the tube. Also when the terni tangential is used in the specification and claims it is intended to include only precisely 'tangential l will now describe invention illustrated drawings in Which- Figure l is e. vertical section through a centrifugal separatorembodyingmy inven tion. Fig. 2 is n cross-section on the line ses nig. i. a is the separator howl, provided *with superimposed inclined plates l).

c the central feed pipe provided with projecting wings d. Each of these wings has a slot cut through it. rl-he forward nell c of erich. slot is3 at its inner end, tangential an embodiment of iny in the accompanying y,tolthe feed pipe and inclined rearwardly with respect Vto the direction of rotation of the bowl. (indicated hy the arro'fvl.' As shown, the wall c continues in a slrzligln line to the outer end of the slot. 'lhc enter end ofthe slots open into vthe spaces between the plates. lIJhen l use the term forward the forward Wall with respect wall,7 l mean to the direction of rotation of the howl.

My invention relates io the point Where the full mill: leaves and not necessarily the point where it enters thesepcreting space of the howl.

Yatented pr, il, l

the Acentral feed pipe Having now fully described my invention, what l claini and desire to protect by Letters Patent is:

l. ln a centrifugal liquid separator, the combination with the rotating bowl, of a centrali feed pipe adapted vto receive the liquid to be separated, and means to cause said liquid to leave the feed pipe in a. direction tangential with respect to the feed pipe.

Q. ln a centrifugal liquid seperator, the combination with the rotating bowl, of a central feed pipe adapted to receive the liquido be separated, and means 'to cause said liquid to leave the feed pipe in a directiolf rearwardly with respect to the direction of rotation of the bowl and tangential Ato the feed pipe.

in a. centrifugal liquid separator, the combination'with the rotating bowl, of a central Afeed pipe having outlets, the inner ends of the forward walls of said outlets being tangential to the feed pipe.

il. In a centrifugal lirpiid separator, the combination with] the rotating bowl, of a central feed pipe having outlets, vthe inner ends of the forward walls of said outlets being in directions rearwardly with respect to the direction of rotation of the bowl and tangential to the feed pipe.

5. ln a centrifugal liquid Jnparator, the combination with the rotating bowl, of a' central feed pipe having an outlet, the inner end of the forward wall of said outlet being tangential to the feed pipe.

6. In a centrifugal liquid separator, the cmnbination with the rotating bowl, of a eeacee central feed pipe, slotted Winge projecting therefrom, the inner ends of the forward therefrom, the inner ends of the forward.

walls of said Slots inclining rearwardly with respect to the direction of rotation of the bowl and tangential to said feed pipe.

8. In a centrifugal liquid separator, the combination with the rotating bowl having plates therein, of a central feed pipe, slotted wings projecting therefrom, the inner ends of the forward walls of said slots being tangential to the central feed pipe, the outer end of said slot opening into the space between the plates.

9. In a centrifugal liquid separator, the combination with the rotating bowl having plates thereinof a central feed pipe, slotted wings projecting therefrom, the inner ends of the forward walls of said slots inclining rearwardly with respect to the direction of rotation of the bowl, and being tangential to said feed pipe at said point, the outer end of said slot opening into the space between said plates.

Iii-testimony of which invention, I have hereunto set niy hand,l at Poughkeepsie, on

this 6th day of June, 1908. 

